From: Long Li <longli@microsoft.com>
Date: Wed, 22 Nov 2017 17:38:43 -0700
Subject: [PATCH] CIFS: SMBD: Upper layer sends data via RDMA send
Git-commit: 9762c2d080926b7c292cb7c64ca6030e88d6a6e4
Patch-mainline: v4.15
References: bsc#1144333
With SMB Direct connected, use it for sending data via RDMA send.
Signed-off-by: Long Li <longli@microsoft.com>
Signed-off-by: Steve French <smfrench@gmail.com>
Reviewed-by: Pavel Shilovsky <pshilov@microsoft.com>
Reviewed-by: Ronnie Sahlberg <lsahlber@redhat.com>
Acked-by: Aurelien Aptel <aaptel@suse.com>
---
fs/cifs/transport.c | 8 ++++++--
1 file changed, 6 insertions(+), 2 deletions(-)
diff --git a/fs/cifs/transport.c b/fs/cifs/transport.c
index 510f41a435c8..9779b3292d8e 100644
--- a/fs/cifs/transport.c
+++ b/fs/cifs/transport.c
@@ -37,6 +37,7 @@
#include "cifsglob.h"
#include "cifsproto.h"
#include "cifs_debug.h"
+#include "smbdirect.h"
/* Max number of iovectors we can use off the stack when sending requests. */
#define CIFS_MAX_IOV_SIZE 8
@@ -232,7 +233,10 @@ __smb_send_rqst(struct TCP_Server_Info *server, struct smb_rqst *rqst)
struct socket *ssocket = server->ssocket;
struct msghdr smb_msg;
int val = 1;
-
+ if (cifs_rdma_enabled(server) && server->smbd_conn) {
+ rc = smbd_send(server->smbd_conn, rqst);
+ goto smbd_done;
+ }
if (ssocket == NULL)
return -ENOTSOCK;
@@ -301,7 +305,7 @@ __smb_send_rqst(struct TCP_Server_Info *server, struct smb_rqst *rqst)
*/
server->tcpStatus = CifsNeedReconnect;
}
-
+smbd_done:
if (rc < 0 && rc != -EINTR)
cifs_dbg(VFS, "Error %d sending data on socket to server\n",
rc);
--
2.16.4